<template>
    <view class="back icon-left" @click="onTap"></view>
</template>
  
<script>
export default {
methods:{
    onTap(){
        console.log('返回');
    }
}
}
</script>
  
<style>
.back {
    position: absolute;
    left: 50rpx;
    top: 50rpx;
    z-index: 9;

    display: flex;
    justify-content: center;
    align-items: center;
    width: 60rpx;
    height: 60rpx;
    border-radius: 50%;
    font-size: 23px;
    color: #fff;
    background-color: rgba(0, 0, 0, 0.5);
}
</style>
